A task includes laying down $10$ km of asphalt. Two teams are working in two shifts, one morning shift, and one evening shift, each $8$ hours long $($Team $1$ works $6$ AM to $2$ PM$,$ Team $2$ works $2$ PM to $10$ PM$).$ It is estimated that completing this task will take $30$ consecutive days. The combined wages of team $1$ are $$400$ per hour. The combined wages of team $2$ are also $$400$ per hour, however they are paid a $50\%$ premium for every hour worked after $6$:$00$ PM$.$ At the end of day $12,5$ km of asphalt has been completed, but it should also be noted that Team $2$ had actually been working from $2$ PM to $11$ PM for $6$ of the last $12$ days.